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		<H3><A name="HDRCHGGRME" ></A>ChangeGroupMember</H3>
		<P><STRONG>Category</STRONG>
		<P>
<A HREF="refgu008.htm#HDRCATSTR">Structuring</A>
<P><STRONG>Function</STRONG>
<P>Insert, rename, or delete a member of an existing group
<P><STRONG>Syntax</STRONG>
<PRE>
<STRONG>changed</STRONG> = ChangeGroupMember(<STRONG>data, operation, id, newmember, newtag</STRONG>);
</PRE>
<P><STRONG>Inputs</STRONG>
<BR>
<TABLE BORDER>
<TR>
<TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Name
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Type
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Default
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">Description
</TH></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>data</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">group
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">none
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">input group object
</TD></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>operation</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">string
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">none
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">how to alter the group member
</TD></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>id</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">integer
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">none
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">index or name of existing group
member
</TD></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>newmember</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">object
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">operation dependent
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">new or replacement group member
</TD></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>newtag</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">scalar or string
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">no default
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">new series position or member
name
</TD></TR></TABLE>
<P><STRONG>Outputs</STRONG>
<BR>
<TABLE BORDER>
<TR>
<TH ALIGN="LEFT" VALIGN="TOP" WIDTH="25%">Name
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="25%">Type
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="50%">Description
</TH></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="25%"><TT><STRONG>changed</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="25%">group
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="50%">group with one member changed
</TD></TR></TABLE>
<P><STRONG>Functional Details</STRONG>
<P>
This module allows you to replace or insert a member of an existing
group.
<TABLE CELLPADDING="3">
<TR VALIGN="TOP"><TD><P><B><TT><STRONG>data</STRONG></TT>
</B></TD><TD><P>is the group to be modified
</TD></TR><TR VALIGN="TOP"><TD><P><B><TT><STRONG>operation</STRONG></TT>
</B></TD><TD><P>is the operation to perform on the specified member of
<TT><STRONG>data</STRONG></TT>.  If <TT><STRONG>data</STRONG></TT> is a series
group, then <TT><STRONG>operation</STRONG></TT> must be one of "insert
before", "replace", "insert after", or "delete". If
<TT><STRONG>data</STRONG></TT> is any other kind of group, then
<TT><STRONG>operation</STRONG></TT> must be one of "insert",
"replace", "delete".
Note that for most applications, the order of members in a group is not
important, and the order of members in a group is not guaranteed to be
maintained by modules in Data Explorer unless the group is a Series.
</TD></TR><TR VALIGN="TOP"><TD><P><B><TT><STRONG>id</STRONG></TT>
</B></TD><TD><P>is the index (from 0 to n-1, where n is the number of members
of <TT><STRONG>data</STRONG></TT>) or name of an existing member of
<TT><STRONG>data</STRONG></TT>
</TD></TR><TR VALIGN="TOP"><TD><P><B><TT><STRONG>newmember</STRONG></TT>
</B></TD><TD><P>is the new or replacement object to be placed
in <TT><STRONG>data</STRONG></TT>
</TD></TR><TR VALIGN="TOP"><TD><P><B><TT><STRONG>newtag</STRONG></TT>
</B></TD><TD><P>is the series position or member name for
<TT><STRONG>newmember</STRONG></TT>. If <TT><STRONG>data</STRONG></TT> is a
series,
this parameter is required.
</TD></TR></TABLE>
<P><STRONG>Components</STRONG>
<P>
This module does not modify any components of the input
<TT><STRONG>data</STRONG></TT>.
<P><STRONG>Example Visual Programs</STRONG>
<PRE>
ManipulateGroups.net
</PRE>
<P><STRONG>See Also</STRONG>
<P>
<A HREF="refgu026.htm#HDRCHGGRTY">ChangeGroupType</A>,
<A HREF="refgu029.htm#HDRCOLLECT">Collect</A>,
<A HREF="refgu032.htm#HDRCOLLECS">CollectSeries</A>,
<A HREF="refgu031.htm#HDRCOLLECN">CollectNamed</A>,
<A HREF="refgu030.htm#HDRMULTIGR">CollectMultiGrid</A>
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